Continuous caliper for rubber-treated fabric.



T. MIDGLEY.

CONTINUOUS CALIPER FOR RUBBER TREATED FABRIC. APPLICATION FILED MARJ26.I914.

1,1 84,002. Patented May 23, 1916.

2 SHEETS-SHEET1.

T. MIDGLEY.

commuous CALIPER FOR RUBBER TREATED FABRIC.

, APPLICATION FILED MAR. 26. 1914.

Patented May 23,1916.

2 SHEETSSHEET2.

7/20/7768 /7/0 Q/Qg 5mm Mioz own wows:

3m 5 ugh:

@144 vgm sr TEs PATENT OFFICE. 1

THOMAS MIDGLEY, or won'rmne'ron, OHIO, assxenon To MORGAN & WRIGHT, or

' mrraorr, mcmean, A conrom'rron or MICHIGAN.

\ CONTINUOUS CALIPER FOR RUBBER-TREATED FABRIC.

Worthington, county of Franklin, and State of Ohio, have inventedcertain new and use ful Improvements in Continuous Calipers forRubber-Treated Fabrics, of which the following is a full, clear, and.exact de-- scriptio g This invention relates to the manufacture ofrubber treated fabrics, and has for an object to provide apparatus forindicating variations in the thickness of a web of rubber treated fabrictraveling from the rubber treating calender rolls to the take-up stockroll.

In treating fabric with rubber it is customary to pass the fabric 1n theform of a ribbon or web between calender rolls one of which is suppliedwith a film of rubber from a suitable source and applies this film tothe web during its passage between the rolls. The web so treated is thenspooled upon a stock roll with a backing of fabric separating andkeeping the con-volutions from adhering together.

My invention provides an apparatus for slightly tensioning this webbetween calender rolls and stock roll and indicating the thickness ofthe tensioned web.

111' the drawings one embodiment of my inventionis shown, in whichdrawings- Figure 1 is a side elevation of the apparatus; Fig. 2 is afront elevation of the gage mechanism; Fig. 3 is a sectional new on theline 33, Fig. 2. .Referring to the drawmgs, 10 and 11 designate calenderrolls of the usual and well known type employed in treatlng a fabric web12 with rubber. The web passes from the calender rolls over a guide roll13 carried on a suitable frame 14 and 1s then spooled upon a stock roll15 carried by the a frame and preferably power driven as indicated at16. A backing 17 of fabric is pplied to the rubber treated web from asupply roll 18 carried by the frame andseparates the convolutions of therubber treated fabric on the stock roll.

In carrying out my inventlon a pair of brackets 19 is bolted to theframe 14 and is connected at the free ends by a tie rod 20 which extendstransversely below the path of the web 12. A pair of supporting plates21 is secured to the outer ends of the tie rod Specification of'LettersPatent.

Patented May 23, 1916.

Application filed March 26, 1914. Serial No. 827,328.

by split ring clamps 22. Each plate equipped with a pair of parallelroller bear:

lugs 23, the bearings of both plates' 'being in alinement and forminganti-friction sup ports for an idle roller 24. The rolleris formed wltha peripheral. groove 25 near sponding pair of bearings 23 and preventsendwise movement ofthe roller. The roller extends transverselyunderneath Y and supports the rubber treated web between the the web.Each end of the roller is uniformly reduced as shown at 26 for a purposewhich will presently appear.

Positioned at each end of the tensio roller 24 is a carriage 27 which ismounted between guides 28 on the related supporting plate to slidetoward and away from the path of the web. An arcuate bracket arm 29 isswiveled onthe'carriage by a pin 30 and carries a sleeve 31 whichsupports the margin of the web and which snugly re ceivesthecorresponding reduced end 26. of

the roller, the surface of the sleeve. and

each end which snugly receives the correroller being flush .with eachother and presenting a continuous supporting surface for the web. Thesleeve is revolubly secured to the arm by a pin 32 and both the sleeveand the roller are rotated as a unit by friction of the web passingthereover whereby the free and unobstructed travel of the web isassured. An ordinary indicator '33 is fixed to the tip of the arm, theindicator stem 34 carrying a roller 35 which rides on the Web as itpasses over the supporting roller 24 and transmits the variations in thethickness thereof to the indicatorin the usual manner.

In operation by virtue of the web being tensioned by the 'roller 24 allcreases,

wrinkles, and other irregularities in the web are removed so that thereading of the indicator accurately indicates the true thickness of theweb. Both indicators operate simultaneously through the instrumentalityof the roller 35 upon opposite longitudinal edges of the web andindicate the respective thicknesses of said edges whereby any variationmay be observed and the rubber treating mechanism then regulated tocorrect the same. Both carriages whereupon the bracket arms 29 may be 27may be withdrawn 'from the web until the sleeves 31 disengage 'from theroller 24 swung out of the way when desired. When' again-swung back intoposition, the sleeves engage with the corresponding ends of the rollerand anchor the indicators in operative position with respect to the web.I I

It will be noted .from the above descriptionthat the sleeve ''31, ormember which supports the margin of the webfis movable as a unit withthe indicator,'.toward and away .from the path of the web oven themember. The object of this construction is that the'member 31 will, bymovement as a unit with the. indicator, be always maintained in fixedposition relatively 'to the indicator so that accurate readings will bepossible even while the unit is being moved bodily upon the rubber"treated web to various positions.

Having thus described my invention,

what I claim and desire to by Letters Patent is l; A caliper'lincludinga roller for supporting a traveling" web, a support, an armslidablymounted thereon movable toward and away from the path of the web overthe have protected roller, a sleeve carried bythe arm for reandindicating the thickness of'the web. 7

ceiving one endof the roller and anchoring said arm, and an indicatorcarried by the arm co-acting with said sleeve for engagingsleeve-carried by said arm for receiving said.

' reduced end of .the'roll'er, and an indicator carried by said arm forcoracting' with said sleevein engaging and indicating the thicknessoftheweb. v 3.,A caliper embodying a support,'a roller thereon forsupporting, a traveling web and having peripheral grooves rollerbearings on the support-fitting in" corresponding pe ripheral grooves inthe roller and; preventingfl'endwise movement of the roller upon thesupport, an arm slidably mountedv on the support at one end' oftheroller and movable toward and away from the pathofthe web over theroller,,a sleeve carried by the arm for engagingwhe endjof the rollerand anchoring the arm, and an indicator carried by the arm and coactingwith the sleeve for engaging and indicating the thickness of the web. 1

Signed at Detroit, county of Wayne, State of Michigan, this 23rd day ofMarch, 19141 I THOMAS'MIDGLE-Y. -'W itnesses.:' 4 1. 4

.' 'JOHN CARLSON,"

' y E; LA BUSCHEWSKY.

